FRG-7700

Yaesu-Musen Co. Ltd.; Tokyo

Datos
Foro
Imágenes
Colecciones

  • Año
  • 1981–1984 ?
  • Categoría
  • Receptor para radioaficionados (puede incluir bandas de radiodifusión publ.)
  • Radiomuseum.org ID
  • 73751

Haga clic en la miniatura esquemática para solicitarlo como documento gratuito.

 Especificaciones técnicas

  • Numero de transistores
  • 123
  • Semiconductores
  • Principio principal
  • Superheterodino doble o triple conversión; ZF/IF 48055/455 kHz
  • Gama de ondas
  • Bandas de recepción puestas en notas.
  • Tensión de funcionamiento
  • Red: Corriente alterna (CA, Inglés = AC) / 100; 120; 220; 240 Volt
  • Altavoz
  • Altavoz dinámico (de imán permanente) / Ø 8.5 cm = 3.3 inch
  • Potencia de salida
  • 1.5 W (unknown quality)
  • Material
  • Metálico
  • de Radiomuseum.org
  • Modelo: FRG-7700 - Yaesu-Musen Co. Ltd.; Tokyo
  • Forma
  • Sobremesa de botonera.
  • Ancho, altura, profundidad
  • 13 x 5 x 10 inch / 330 x 127 x 254 mm
  • Anotaciones

  • Yaesu Communications Receiver FRG-7700.
    Coverage 150-30000 kHz in AM, SSB, CW and FM; noise blanker, digital frequency-readout. Option for internal 12 channel or 72 channel (6 banks of 12 channels) memory.
    Accessory: Active antenna FRA-7700, antenna tuner FRT-7700, VHF-converter FRV-7700.

  • Peso neto
  • 6 kg / 13 lb 3.5 oz (13.216 lb)
  • Precio durante el primer año
  • 1,478.00 DM
  • Mencionado en
  • RICOFUNK-Katalog 1983
  • Autor
  • Modelo creado por Martin Bösch. Ver en "Modificar Ficha" los participantes posteriores.

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Colecciones

El modelo es parte de las colecciones de los siguientes miembros.

 Forum

Contribuciones en el Foro acerca de este modelo: Yaesu-Musen Co. Ltd.: FRG-7700

Hilos: 2 | Mensajes: 3

While watching the evening news on TV this past spring, I realized the distinct smell of burning electronics. I traced it to my den where the FRG-7700 was letting out all of it's "Magic Smoke".  A quick pull of the power cord and out the door we went. The whole radio was really HOT, and completely dead.

Last month I finally open the radio to attempt a repair and found the full wave bridge rectifier and associated space on the 12V DC Power Supply Circuit board burnt to charcoal/carbon. I also found that the mains wiring to the transformer primary were burnt, and shorted together.  What caused this catastrophe is still unknown, I suspect a power surge on the mains. It could just be a simple component failure due to old age, but for whatever reason, I found the radio functioned fine with an external 12V DC supply.

I had to replace the multi-input voltage PS transformer, build a new rectifier/filter/regulator circuit board, and install in the space of the old components. My fix has destroyed the antique value of the radio, but I also have it back in service, used daily, for just the cost of a new transformer.  All other parts were found in my junk box. 

I also added an additional fuse between the PS, and the radio circuit. I know it is just overkill, the primary fuse should protect everything, but it makes me feel better.

Mike.

 

Walter (Mike) Meek, 16.Nov.11

Weitere Posts (2) zu diesem Thema.

Das Gerät wurde auch von Sommerkamp ( www.radiomuseum.org/dsp_hersteller_detail.cfm ) unter dem Namen "Sommerkamp FRG7700" vertrieben.

Mit freundlichen Grüßen,

Daniel Consales

Daniel Consales, 28.May.09

Weitere Posts (1) zu diesem Thema.